28694757

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{1181}}^1$

素因数の和:1293

約数の個数: 32

約数和(自身を含む): 47658240

約数和(自身を除く): 18963483

約数列:

[1, 3, 7, 13, 21, 39, 89, 91, 267, 273, 623, 1157, 1181, 1869, 3471, 3543, 8099, 8267, 15353, 24297, 24801, 46059, 105109, 107471, 315327, 322413, 735763, 1366417, 2207289, 4099251, 9564919, 28694757]

約数ペア:

[(1, 28694757), (3, 9564919), (7, 4099251), (13, 2207289), (21, 1366417), (39, 735763), (89, 322413), (91, 315327), (267, 107471), (273, 105109), (623, 46059), (1157, 24801), (1181, 24297), (1869, 15353), (3471, 8267), (3543, 8099)]